Slow down webpack rebundle when migrate from 0.5 to 0.6

[mofas]

I recently migrated from version 0.5 to 0.6 and found that the webpack rebundle time increase from 500ms to 3000ms.

I have no idea why this happen, and don't know how to fix it.
Does anyone else has the same problem too?

[mofas]

The problem is material-design-fonticons is too heavy for webpack to load.

[hai-cea]

@mofas these font icon references were removed in 0.7.0.